CN110512739A - A kind of novel steel-concrete-FRP composite structure and its construction method - Google Patents
A kind of novel steel-concrete-FRP composite structure and its construction method Download PDFInfo
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- CN110512739A CN110512739A CN201910936386.XA CN201910936386A CN110512739A CN 110512739 A CN110512739 A CN 110512739A CN 201910936386 A CN201910936386 A CN 201910936386A CN 110512739 A CN110512739 A CN 110512739A
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- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 266
- 239000010959 steel Substances 0.000 claims abstract description 266
- 239000004567 concrete Substances 0.000 claims abstract description 89
- 238000000034 method Methods 0.000 claims abstract description 49
- 239000004744 fabric Substances 0.000 claims abstract description 26
- 239000000853 adhesive Substances 0.000 claims abstract description 4
- 230000001070 adhesive effect Effects 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims description 14
- 239000011376 self-consolidating concrete Substances 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 6
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 4
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000011440 grout Substances 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- -1 that is Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The present invention provides a kind of novel steel-concrete-FRP composite structure and its construction method, including steel I-column, steel I-column is circumferentially fixed with a pair of inside girder steel and a pair of outside girder steel, the top of each inside girder steel and outside girder steel is fixed with a pair of of back subcontracting process, back subcontracting process is oppositely arranged and the top of back subcontracting process and side be fixed on inside girder steel or outside girder steel flange plate and web, the flange plate lower surface of outside girder steel and inside girder steel lower part is adhesive with FRP cloth, the present invention pours intracavitary casting concrete using first that back subcontracting process and inside girder steel or outside girder steel are constituted and substantially increases the bearing capacity of girder steel by increasing FRP cloth, rigidity and fire resistance.
Description
Technical field
The present invention relates to a kind of novel steel-concrete-FRP composite structure and its construction methods.
Background technique
Steel construction has high intensity, light weight and anti-seismic performance good, is widely used in high level, greatly across the building knot with heavy duty
In structure, also it is largely used in bridge structure.But there is also following disadvantages for steel construction: 1) because steel are directly exposed to air
In, antirust and fireproof cost are higher, once impaired, reinforcement cost is also higher；2) rigidity of steel construction is relatively low, in cross
Biggish Order Moment is easy to produce under to load action, therefore its overall stability is poor；3) steel structure member is by steel plate
It is composed, poor compare with solid component of the local stability of steel plate is easier that local buckling occurs.
Summary of the invention
The present invention improves the above problem, i.e., the technical problem to be solved by the present invention is to existing steel construction rigidity
Difference, steel using amount is big, and antirust fireproof is at high cost.
Specific embodiments of the present invention are: a kind of novel steel-concrete-FRP composite structure, including vertically arranged work
Word steel column, the steel I-column are circumferentially fixed with a pair of inside girder steel and a pair of outside girder steel, the inside of the inside girder steel
End is connect with the web of steel I-column, and the inner end of the outside girder steel and the flange plate of steel I-column connect, the inside steel
Beam and outside girder steel are I-steel, and the top of each inside girder steel and outside girder steel is fixed with a pair of of back subcontracting process, described
Back subcontracting process is oppositely arranged and the top of back subcontracting process and side be fixed on inside girder steel or outside girder steel the edge of a wing
The flange plate and web of plate and web, back subcontracting process and inside girder steel or outside girder steel form first and pour chamber, the beam
The first concrete grouting hole and the concrete slurry outlet that there is top subcontracting process connection first to pour chamber, the outside girder steel with it is interior
The flange plate lower surface of side girder steel lower part is adhesive with FRP cloth.
Further, the inside girder steel and outside girder steel are vertically arranged, and the upper and lower side of outside girder steel and inside girder steel
Face is contour.
Further, the beam column section for being buckled in steel I-column quadrangle is fixed between the adjacent outside girder steel and inside girder steel
Point area's subcontracting process, the outboard end of the beam column node area subcontracting process are fixed on the abdomen of adjacent outside girder steel and inside girder steel
Outside girder steel and inside girder steel upper part and lower part are fixed in plate, the top of the beam column node area subcontracting process and bottom closing
Flange plate, the top of the steel I-column, beam column node area subcontracting process and outside girder steel and inside girder steel and lower part flange plate,
The web of outside girder steel and inside girder steel constitutes closed second and pours chamber, the top edge of a wing of the outside girder steel and inside girder steel
Plate, the concrete pouring hole that there is the superposed flange plate of inside girder steel connection second to pour chamber.
Further, the flange plate two for being buckled in steel I-column is fixed with below each inside girder steel and outside girder steel
The channel steel of side, the upper end of the channel steel are bent with horizontally disposed anchor plate, the anchor plate and inside girder steel and outside
The lower end surface of girder steel bottom wing listrium is fixedly connected, and the both sides of the channel steel have the button side extended to steel I-column direction, institute
It states button side to be fixedly connected with the flange plate of steel I-column, the steel I-column and channel steel are enclosed third and pour chamber, described interior
Side girder steel and outside girder steel are located at the concrete grouting intercommunicating pore that there is the flange plate of lower part connection third to pour chamber, the coagulation
Soil grouting intercommunicating pore makes second to pour chamber and pour chamber with third be connected to, and the lower part of the channel steel is be connected to that third pours chamber the
Two concrete grouting holes.
Further, the anchor plate is fixedly connected through bolt with inside girder steel and outside girder steel.
Further, the end of the FRP cloth is located at the wing that anchor plate is located at lower part with inside girder steel and outside girder steel
Between listrium.
Further, the first concrete grouting hole and concrete slurry outlet are divided into the both ends of back subcontracting process, coagulation
Native slurry outlet is located at the top in the first concrete grouting hole.
Further, it described first pours intra-bladder instillation and has a lightweight concrete, described second pours chamber and third pours chamber
Inside it is perfused with self-compacting concrete.
The invention also includes a kind of construction methods for realizing novel steel-concrete-FRP composite structure as described above, specifically
The following steps are included:
1) inside girder steel and outside girder steel are fixedly connected in steel I-column side；
2) FRP cloth anchor bolt hole is opened up respectively in the bottom wing listrium of inside girder steel and outside girder steel, for connecting at the top of channel steel
Anchor plate；Flange plate opens up concrete pouring hole respectively above and below the girder steel of inside；
3) four beam column node area subcontracting process are welded in steel I-column side and forms closed cavity bean column node；Inside girder steel
With the rectangular steel pipe for welding two back subcontracting process one two-chambers of formation below the top edge of a wing of outside girder steel；
4) FRP cloth is pasted in the bottom of inside girder steel and outside girder steel；Concrete grouting hole is opened in channel steel lower part, and is welded
In the two sides of steel I-column；FRP anchor bolt is installed；
5) self-compacting concrete is poured using jack-block at the second concrete grouting hole, until filling up concrete simultaneously in column cavity
It is overflowed from concrete pouring hole, forms two-chamber steel core concrete column and novel steel-concrete combined panel node；
6) lightweight concrete is poured with jack-block at the first concrete grouting hole of one end of back subcontracting process, until lightweight
Until concrete overflows from the concrete slurry outlet of the other end, thus in inside girder steel and to forming two-chamber at the top of the girder steel of outside
Concrete filled steel tube；
7) after completing this layer of composite structure construction, the construction of the achievable next layer of composite structure of above step is repeated.
Compared with prior art, the invention has the following advantages: the present invention utilizes back subcontracting process and inside steel
What beam or outside girder steel were constituted first pours intracavitary casting concrete and substantially increases the carrying of combination beam by increase FRP cloth
Power, rigidity and fire resistance.Anchor plate at the top of channel steel described in embodiment can play anchoring FRP cloth, reinforce beam-ends bottom
Compressive region and the effect for reinforcing beam column bonding strength.Simultaneously second pour chamber pour intra-bladder instillation concrete with third can also be big
Big resistance to compression, bending resistance and the shear-carrying capacity for improving pillar and beam-column joint.Furthermore in embodiment, two are fixed outside steel I-column
The channel steel of a top tape anchor plate, and self-compacting concrete is poured in two-chamber steel pipe column, two-chamber steel core concrete column is formed,
To improve the bearing capacity of pillar and beam-column joint.The FRP cloth of beam bottom can have not only been anchored using the anchor plate that channel steel carries, but also
The bearing capacity of node can be improved.
Detailed description of the invention
Fig. 1 is steel structure frame schematic diagram of the present invention.
Fig. 2 is steel I-column of the present invention and outside girder steel and internal layer steel beam structure schematic diagram.
Fig. 3 is invention assembling assembly decomposition texture schematic diagram.
Fig. 4 is invention assembled state structural schematic diagram of the present invention.
Figure label explanation: 1-steel I-column, 2-inside girder steels, 3-outside girder steels, 4-concrete pouring holes, 41-
Concrete grouting linked hole, 5-FRP cloth anchor bolt holes, 6-beam column node area subcontracting process, 7-back subcontracting process, 8-
FRP cloth, 9-channel steels, 91- anchor plate, 92 button sides, the 93-the second concrete grouting hole, 10-FRP cloth anchor bolts, 11-
First concrete grouting hole, 12-concrete slurry outlets.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in figures 1-4, a kind of novel steel-concrete-FRP composite structure, including vertically arranged steel I-column 1, institute
It states steel I-column and is circumferentially fixed with a pair of inside girder steel 2 and a pair of outside girder steel 3, the inner end of the inside girder steel and I-shaped
The web of steel column connects, and the inner end of the outside girder steel and the flange plate of steel I-column connect, in the present embodiment, the inside
Girder steel and outside girder steel are vertically arranged, and outside girder steel and the upper and lower end face of inside girder steel are contour.
The top of each inside girder steel and outside girder steel is fixed with a pair of of back subcontracting process 7, the back subcontracting process 7
Be oppositely arranged and the top of back subcontracting process and side be fixed on inside girder steel or outside girder steel flange plate and web, back
The flange plate and web of subcontracting process 7 and inside girder steel or outside girder steel form first and pour chamber, the back subcontracting process tool
There is connection first to pour the first concrete grouting hole 11 and the concrete slurry outlet 12 of chamber, the outside girder steel and inside girder steel
Flange plate lower surface positioned at lower part is adhesive with FRP cloth 8.
FRP cloth, that is, fibre reinforced composites cloth in the present invention.
First concrete grouting hole and concrete slurry outlet are divided into the both ends of top subcontracting process, and concrete slurry outlet is located at
The top in the first concrete grouting hole.It is poured at the first concrete grouting hole 11 of one end of back subcontracting process 7 with jack-block
Lightweight concrete is built, until lightweight concrete overflows from the concrete slurry outlet 12 of the other end, thus in inside girder steel 2
With at the top of outside girder steel 3 formed two-chamber concrete filled steel tube；It is mixed by the way that lightweight is perfused to the first concrete grouting hole 11 when construction
Solidifying soil, so that the bearing capacity of beam, rigidity and fire resistance greatly improve.
In the present embodiment, it is fixed between the adjacent outside girder steel 3 and inside girder steel 2 and is buckled in 1 four jiaos of steel I-column
Beam column node area subcontracting process 6, the outboard end of the beam column node area subcontracting process are fixed on adjacent outside girder steel and inside
The web of girder steel, the top of the beam column node area subcontracting process and bottom closing be fixed on outside girder steel 3 and inside girder steel 2 its
Top and lower part flange plate, the steel I-column 1, beam column node area subcontracting process 6 and outside girder steel 3 are upper with inside girder steel 2
The web of portion and lower part flange plate, outside girder steel and inside girder steel constitutes closed second and pours chamber, and the inside girder steel is located at
The concrete pouring hole 4 that there is the flange plate on top connection second to pour chamber.
In the present embodiment, the lower section of each inside girder steel 2 and outside girder steel 3, which is fixed with, is buckled in its edge of a wing of steel I-column
The channel steel 9 of plate two sides, the upper end of the channel steel are bent with horizontally disposed anchor plate 91, the anchor plate and inside girder steel
And the lower end surface of outside girder steel bottom wing listrium is fixedly connected, the both sides of the channel steel have the button extended to steel I-column direction
Side 92, the button side are fixedly connected with the flange plate of steel I-column, and button side ensure that the steel I-column 1 encloses shape with channel steel 9
Chamber, the concrete that there is the flange plate that the inside girder steel and outside girder steel are located at lower part connection third to pour chamber are poured at third
Be in the milk intercommunicating pore 41, and the concrete grouting intercommunicating pore 41 makes second to pour chamber and pour chamber with third to be connected to, under the channel steel
Portion the second concrete grouting hole 93.
When construction, self-compacting concrete is poured using jack-block at the second concrete grouting hole 93, until in column cavity
Fill up concrete and pour chamber from second concrete pouring hole 4 in overflow, to form two-chamber steel core concrete column and novel
Steel-concrete combined joint.
The inside girder steel and the flange plate of outside girder steel lower part have FRP cloth anchor bolt hole 5, and anchor plate 91 passes through
FRP cloth anchor bolt through FRP cloth anchor bolt hole 5, which is realized, to be fixed, and the FRP cloth is fixed on anchor plate and inside girder steel
And outside girder steel is located between the flange plate of lower part.Described first, which pours intra-bladder instillation, lightweight concrete, and described second pours
Chamber and third, which pour intra-bladder instillation, self-compacting concrete.
Concrete construction method is as follows:
Construction method, comprising the following steps:
1) inside girder steel 2 and outside girder steel 3 are fixedly connected in 1 side of steel I-column；
2) FRP cloth anchor bolt hole 5 is opened up respectively in the bottom wing listrium of inside girder steel 2 and outside girder steel 3, for connecting channel steel top
The anchor plate 91 in portion；Concrete pouring hole 4 and concrete intercommunicating pore 41 are opened up respectively in about 2 flange plate of inside girder steel；In
It welds four beam column node area subcontracting process 6 and forms closed cavity bean column node in steel I-column side；
3) square that two back subcontracting process 7 form a two-chamber is welded below the top edge of a wing of inside girder steel 2 and outside girder steel 3
Shape steel pipe；
4) FRP cloth 8 is pasted in the bottom of inside girder steel 2 and outside girder steel 3；The second concrete grouting hole 93 is opened in 9 lower part of channel steel,
And it is welded to the two sides of steel I-column 1；FRP cloth anchor bolt 10 is then installed；
5) self-compacting concrete is poured using jack-block at the second concrete grouting hole 93, until filling up concrete in column cavity
And overflowed from concrete pouring hole 4, form two-chamber steel core concrete column and novel steel-concrete combined panel node；
6) lightweight concrete is poured with jack-block at the first concrete grouting hole 11 of one end of back subcontracting process 7, until
Until lightweight concrete overflows from the concrete slurry outlet 12 of the other end, thus in inside girder steel 2 and to 3 top of outside girder steel
Form two-chamber concrete filled steel tube；
7) after completing this layer of composite structure construction, the construction of the achievable next layer of composite structure of above step is repeated.
Any technical solution disclosed in aforementioned present invention unless otherwise stated, if it discloses numberical range,
Disclosed numberical range is preferred numberical range, and any it should be appreciated by those skilled in the art preferred numberical ranges
The only obvious or representative numerical value of technical effect in many enforceable numerical value.It, can not since numerical value is more
Exhaustion, so the present invention just discloses technical solution of the component values to illustrate the present invention, also, the above-mentioned numerical value enumerated is not
The limitation to the invention protection scope should be constituted.
If the words such as " first ", " second " are used herein come if limiting components, those skilled in the art are answered
This knows: the use of " first ", " second " is intended merely to facilitate in description and is distinguished components as not having Stated otherwise
Outside, above-mentioned word has no special meaning.
Meanwhile if aforementioned present invention discloses or relates to the components or structural member of connection fastened to each other, except another
There is statement outer, is fixedly connected it is to be understood that connection (such as using bolt or screw connection) can be removedly fixed, it can also
To understand are as follows: non-removable to be fixedly connected with (such as riveting, welding), certainly, connection fastened to each other or integral type knot
Structure (such as manufacturing using casting technique is integrally formed) is replaced (obviously can not be using except integrally formed technique).
In addition, for indicating the art of positional relationship or shape applied in any technical solution disclosed in aforementioned present invention
Its meaning includes approximate with its, similar or close state or shape to language unless otherwise stated.
Either component provided by the invention by multiple individual component parts either assembled, or one
The separate part that forming technology manufactures.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (9)
1. a kind of novel steel-concrete-FRP composite structure, which is characterized in that including vertically arranged steel I-column, the work
Word steel column is circumferentially fixed with a pair of inside girder steel and a pair of outside girder steel, the inner end of the inside girder steel and steel I-column
Web connection, the inner end of the outside girder steel and the flange plate of steel I-column connect, and the inside girder steel and outside girder steel are
The top of I-steel, each inside girder steel and outside girder steel is fixed with a pair of of back subcontracting process, the back subcontracting process phase
The flange plate and web of inside girder steel or outside girder steel, back are fixed on to the top and side of setting and back subcontracting process
The flange plate and web of subcontracting process and inside girder steel or outside girder steel form first and pour chamber, the inside girder steel and outside steel
The first concrete grouting hole and the concrete slurry outlet that there is the superposed flange plate of Liangqi connection first to pour chamber, it is described outer
The flange plate lower surface positioned at lower part of side girder steel and inside girder steel is adhesive with FRP cloth.
2. a kind of novel steel-concrete-FRP composite structure according to claim 1, which is characterized in that the inside steel
Beam and outside girder steel are vertically arranged, and outside girder steel and the upper and lower end face of inside girder steel are contour.
3. a kind of novel steel-concrete-FRP composite structure according to claim 1 or 2, which is characterized in that adjacent described
The beam column node area subcontracting process for being buckled in steel I-column quadrangle, the bean column node are fixed between outside girder steel and inside girder steel
The outboard end of area's subcontracting process is fixed on the web of adjacent outside girder steel and inside girder steel, the beam column node area subcontracting process
Top and bottom closing be fixed on outside girder steel and inside girder steel upper part and lower part flange plate, the steel I-column, beam column
Node area subcontracting process and outside girder steel and the top of inside girder steel and the web of lower part flange plate, outside girder steel and inside girder steel
It constitutes closed second and pours chamber, the concrete that there is the superposed flange plate of inside girder steel connection second to pour chamber pours
Build hole.
4. a kind of novel steel-concrete-FRP composite structure according to claim 3, which is characterized in that described each interior
The channel steel for being buckled in the flange plate two sides of steel I-column, the upper end bending of the channel steel are fixed with below side girder steel and outside girder steel
There is the lower part flange plate lower end surface of horizontally disposed anchor plate, the anchor plate and inside girder steel and outside girder steel is fixed to connect
It connects, the both sides of the channel steel have a button side extended to steel I-column direction, and the flange plate of the button side and steel I-column is consolidated
Fixed connection, the steel I-column and channel steel are enclosed third and pour chamber, and the inside girder steel and outside girder steel are located at lower part
There is flange plate connection third to pour the concrete grouting intercommunicating pore of chamber, the concrete grouting linked hole make second pour chamber with
Third pours chamber connection, the second concrete grouting hole that there is connection third to pour chamber for the lower part of the channel steel.
5. a kind of novel steel-concrete-FRP composite structure according to claim 4, which is characterized in that the anchoring steel
Plate is fixedly connected through bolt with inside girder steel and outside girder steel.
6. a kind of novel steel-concrete-FRP composite structure according to claim 5, which is characterized in that the FRP cloth
End is located at anchor plate and inside girder steel and outside girder steel is located between the flange plate of lower part.
7. a kind of novel steel-concrete-FRP composite structure according to claim 1, which is characterized in that the first concrete
Grout hole and concrete slurry outlet are divided into the both ends of back subcontracting process, and concrete slurry outlet is located at the first concrete grouting hole
Top.
8. a kind of novel steel-concrete-FRP composite structure according to claim 1, which is characterized in that described first pours
Building intra-bladder instillation has lightweight concrete, and described second, which pours chamber, which pours intra-bladder instillation with third, self-compacting concrete.
9. a kind of construction method for realizing novel steel-concrete-FRP composite structure as claimed in claim 6, which is characterized in that
Specifically includes the following steps:
1) inside girder steel and outside girder steel are fixedly connected in steel I-column side；
2) FRP cloth anchor bolt hole is opened up respectively in the bottom wing listrium of inside girder steel and outside girder steel, for connecting at the top of channel steel
Anchor plate；Flange plate opens up concrete pouring hole respectively above and below the girder steel of inside；
3) four beam column node area subcontracting process are welded in steel I-column side and forms closed cavity bean column node；Inside girder steel
With the rectangular steel pipe for welding two back subcontracting process one two-chambers of formation below the top edge of a wing of outside girder steel；
4) FRP cloth is pasted in the bottom of inside girder steel and outside girder steel；Concrete grouting hole is opened in channel steel lower part, and is welded
In the two sides of steel I-column；FRP anchor bolt is installed；
5) self-compacting concrete is poured using jack-block at the second concrete grouting hole, until filling up concrete simultaneously in column cavity
It is overflowed from concrete pouring hole, forms two-chamber steel core concrete column and novel steel-concrete combined panel node；
6) lightweight concrete is poured with jack-block at the first concrete grouting hole of one end of back subcontracting process, until lightweight
Until concrete overflows from the concrete slurry outlet of the other end, thus in inside girder steel and to forming two-chamber at the top of the girder steel of outside
Concrete filled steel tube；
7) after completing this layer of composite structure construction, the construction of the achievable next layer of composite structure of above step is repeated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910936386.XA CN110512739B (en) | 2019-09-29 | 2019-09-29 | Steel-concrete-FRP combined structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910936386.XA CN110512739B (en) | 2019-09-29 | 2019-09-29 | Steel-concrete-FRP combined structure and construction method thereof |
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| CN110512739A true CN110512739A (en) | 2019-11-29 |
| CN110512739B CN110512739B (en) | 2024-02-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431187A (en) * | 2021-06-28 | 2021-09-24 | 四川省佳宇建设集团有限公司 | Layered assembly type beam column node |
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| CN201372486Y (en) * | 2008-12-30 | 2009-12-30 | 上海勘测设计研究院 | Combination member for strengthening concrete frame |
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